Intelligent power saving method and device for vehicle-mounted refrigerator, electronic equipment and storage medium

Abstract

The invention discloses an intelligent power saving method and device for a vehicle-mounted refrigerator, electronic equipment and a storage medium, and the method comprises the steps that the door opening frequency and the single-time door opening duration of a target vehicle-mounted refrigerator are monitored; determining a user use state based on the door opening frequency and the single door opening duration; acquiring current temperature fluctuation data and battery residual capacity corresponding to the target vehicle-mounted refrigerator; and based on the user use state, the current temperature fluctuation data and the battery residual capacity, a dynamic adjustment strategy is determined, and the refrigeration power of the target vehicle-mounted refrigerator is dynamically adjusted based on the dynamic adjustment strategy. In the embodiment of the invention, the refrigeration power is dynamically adjusted by monitoring the door opening frequency and duration and combining the temperature fluctuation and the battery capacity, so that the energy consumption, the fresh-keeping effect and the battery protection are balanced, and the problems of contradiction between the energy consumption and the temperature fluctuation, poor scene adaptation and insufficient linkage with the vehicle-mounted battery in the traditional technology are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to a vehicle-mounted refrigerator intelligent power saving method and device, an electronic device and a storage medium. BACKGROUND

[0002] The energy management and battery protection of a vehicle-mounted refrigerator in a vehicle-mounted environment are core requirements for automatic control technology of the vehicle-mounted refrigerator. Traditional vehicle-mounted refrigerators often rely on timers or battery capacity thresholds to achieve automatic shutdown, but this approach has many defects. On the one hand, there is a contradiction between energy consumption and temperature fluctuations. Frequent door opening and closing can cause the internal temperature of the refrigerator to rise, for example, a single door opening can cause the temperature in the refrigerator to rise by 5-8℃. If the user takes out items multiple times in a short period of time, the compressor needs to be started more frequently to restore the set temperature, which can significantly increase battery consumption. On the other hand, the scenario requirement is not met. After the vehicle is turned off, if the user does not use the refrigerator for a long time, such as when parking overnight, the traditional timer may still force the refrigerator to shut down even if the battery capacity is sufficient, which can affect the preservation effect. Conversely, if the user uses the refrigerator frequently, such as taking cold drinks frequently when camping, the existing solution cannot dynamically adjust the shutdown strategy, which can cause the battery to be over-discharged. SUMMARY

[0003] Therefore, it is necessary to provide a vehicle-mounted refrigerator intelligent power saving method, device, electronic device and storage medium to solve at least one problem in the prior art.

[0004] In a first aspect, a vehicle-mounted refrigerator intelligent power saving method is provided, comprising: monitoring the door opening frequency and the single door opening duration of a target vehicle-mounted refrigerator; determining a user usage state based on the door opening frequency and the single door opening duration; obtaining current temperature fluctuation data and battery remaining capacity corresponding to the target vehicle-mounted refrigerator; determining a dynamic adjustment strategy based on the user usage state, the current temperature fluctuation data and the battery remaining capacity, and dynamically adjusting the refrigeration power of the target vehicle-mounted refrigerator based on the dynamic adjustment strategy.

[0005] In a possible implementation, after determining the user usage state based on the door opening frequency and the single door opening duration, the method further comprises: constructing a frequency-shutdown time mapping model; determining a basic shutdown rule corresponding to the door opening frequency based on the frequency-shutdown time mapping model and in combination with the user usage state, wherein the basic shutdown rule is used to determine a basic shutdown duration of the target vehicle-mounted refrigerator according to the door opening frequency per unit time; The base closing rule is dynamically modified based on user usage habit data to generate an optimized closing rule adapted to the target user, wherein the optimized closing rule is linked to the dynamic adjustment strategy.

[0006] In a possible implementation, the optimized closing rule is linked to the dynamic adjustment strategy, including: If the optimized closing rule is to extend the base closing duration, the dynamic adjustment strategy synchronously extends the maintenance time of the current refrigeration power; If the optimized closing rule is to shorten the base closing duration, the dynamic adjustment strategy triggers the refrigeration power to enter a low-power consumption gear in advance by a preset time.

[0007] In a possible implementation, the user usage state is determined based on the door opening frequency and single door opening duration, including: Based on the door opening frequency and single door opening duration, dynamic change data of the door opening frequency of the target vehicle-mounted refrigerator is obtained, the dynamic change data including a decrease amplitude of the door opening frequency within a preset time, a duration of zero frequency, and an interval duration of door opening after closing; Based on the dynamic change data of the door opening frequency, a user usage demand rule is determined; Based on the user usage demand rule, a user usage state is determined.

[0008] In a possible implementation, the user usage state is determined based on the user usage demand rule, including: If the decrease amplitude of the door opening frequency within a preset time is greater than a preset amplitude threshold, it is determined that the user has no short-term usage demand, and the target vehicle-mounted refrigerator is controlled to be automatically closed after a preset duration; If the duration of zero frequency is greater than a preset duration, it is determined that the user has ended the usage, and the target vehicle-mounted refrigerator is controlled to be immediately closed; If the interval duration of door opening after closing of the target vehicle-mounted refrigerator is less than a preset interval duration, it is determined that the user is in a temporary taking scenario, and the target vehicle-mounted refrigerator is controlled to be automatically woken up and restored to a running state before closing.

[0009] In a possible implementation, the user usage state is determined based on the door opening frequency and single door opening duration, including: If the door opening frequency within a preset time range is greater than a first preset number of times, the user usage state is a high-frequency state, and the automatic closing time of the refrigerator is extended by a first preset duration; If the door opening frequency within a preset time range is less than a second preset number of times, the user usage state is a low-frequency state, and the automatic closing time of the refrigerator is shortened by a second preset duration.

[0010] In a possible implementation, the monitoring the door opening frequency and the single door opening duration of the target vehicle-mounted refrigerator comprises: acquiring opening and closing state data of the door body of the target vehicle-mounted refrigerator through a preset door body sensor; performing anti-interference processing on the opening and closing state data, the anti-interference processing comprising at least one of dynamic filtering and temperature drift compensation; wherein the dynamic filtering adopts a Kalman filtering algorithm to perform noise reduction processing on the opening and closing state data, and the temperature drift compensation is used to acquire a real-time ambient temperature and dynamically adjust a voltage trigger threshold range of the preset door body sensor according to a preset temperature-voltage threshold mapping relationship; obtaining the door opening frequency and the single door opening duration based on the opening and closing state data after the anti-interference processing.

[0011] In a second aspect, a vehicle-mounted refrigerator intelligent power saving device is provided, comprising: a door opening state monitoring unit configured to monitor the door opening frequency and the single door opening duration of the target vehicle-mounted refrigerator; a user use state determining unit configured to determine a user use state based on the door opening frequency and the single door opening duration; a refrigerator operation data acquisition unit configured to acquire current temperature fluctuation data and battery remaining capacity corresponding to the target vehicle-mounted refrigerator; a power dynamic adjustment unit configured to determine a dynamic adjustment strategy based on the user use state, the current temperature fluctuation data and the battery remaining capacity, and to dynamically adjust the refrigeration power of the target vehicle-mounted refrigerator based on the dynamic adjustment strategy.

[0012] In a third aspect, an electronic device is provided, comprising a memory, a processor, and computer readable instructions stored in the memory and executable on the processor, and the processor implements the steps of the vehicle-mounted refrigerator intelligent power saving method as described above when executing the computer readable instructions.

[0013] In a fourth aspect, a readable storage medium is provided, the readable storage medium stores computer readable instructions, and the computer readable instructions implement the steps of the vehicle-mounted refrigerator intelligent power saving method as described above when executed by a processor.

[0014] The method, device, electronic equipment and storage medium realize the following: the opening door frequency and the single opening door duration of a target vehicle-mounted refrigerator are monitored; a user use state is determined based on the opening door frequency and the single opening door duration; current temperature fluctuation data and a battery remaining capacity corresponding to the target vehicle-mounted refrigerator are obtained; and a dynamic adjustment strategy is determined based on the user use state, the current temperature fluctuation data and the battery remaining capacity, so that the refrigeration power of the target vehicle-mounted refrigerator is dynamically adjusted based on the dynamic adjustment strategy. According to the embodiments of the present application, the refrigeration power can be flexibly adjusted according to the actual use condition (reflected by the opening door frequency and the single opening door duration) of the user and the temperature change inside the refrigerator, unnecessary energy consumption caused by frequent opening and closing of the door is avoided, and the contradiction between energy consumption and temperature fluctuation in the prior art is solved. In addition, the energy can be reasonably allocated on the premise of guaranteeing the refrigeration effect of the refrigerator in combination with the battery remaining capacity of the vehicle, so that the use demand in different scenarios is met, for example, when the battery remaining capacity is sufficient and the user uses the refrigerator frequently, the refrigeration power is appropriately increased to maintain the temperature stability, and when the battery remaining capacity is insufficient and the user uses the refrigerator infrequently, the refrigeration power is reduced to save energy. The problems that the scenario demand is not met and the vehicle battery state is not linked in the prior art are effectively solved, and a good balance between energy consumption control, refrigeration effect and battery protection of the vehicle-mounted refrigerator is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a flowchart of a vehicle-mounted refrigerator intelligent power saving method in an embodiment of the present application; Figure 2 is a structural diagram of a vehicle-mounted refrigerator intelligent power saving device in an embodiment of the present application; Figure 3 is a schematic diagram of an electronic device in an embodiment of the present application. DETAILED DESCRIPTION

[0017] The technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0018] In an embodiment, as shown in Figure 1As shown, a vehicle-mounted refrigerator intelligent power saving method is provided, comprising the following steps: In step S110, the door opening frequency and single door opening duration of the target vehicle-mounted refrigerator are monitored. Optionally, the door body state of the vehicle-mounted refrigerator is detected in real time by a door body sensor, which includes at least one of a Hall sensor, a capacitive sensor, an optical sensor, a microswitch, a distance measuring sensor, or any combination thereof. Preferably, a multi-modal sensor fusion method is used to detect the door body state of the vehicle-mounted refrigerator, and the single door opening duration is counted. For example, the functions of the Hall sensor and the capacitive sensor can be complementary to solve the detection error problem in the vehicle-mounted environment (vibration, temperature fluctuation). The Hall sensor accurately determines the door body switch state by means of real-time sampling of the voltage difference (ΔV) corresponding to the magnetic field change of the door body, combined with a 200 ms time threshold to filter transient interference. The capacitive sensor uses differential capacitance technology to distinguish between condensation caused by temperature fluctuations and actual object placement, avoiding false detection caused by environmental influences of a single sensor, and improving the stability and accuracy of door body state recognition.

[0019] Specifically, the Hall sensor can be fixed in advance in the door body area of the refrigerator (such as the middle position of the door body side frame), and a paired permanent magnet is installed at the same horizontal height on the side of the refrigerator body, ensuring that the Hall sensor is in the best magnetic field sensing range. When the door body is opened, the distance between the sensor and the permanent magnet increases, the magnetic field strength decreases, and the sensor output voltage decreases accordingly, forming a recognizable voltage difference (ΔV). When the door body is closed, the magnetic field is enhanced, and the voltage rises. When ΔV continuously exceeds the preset threshold and the maintenance time is ≥200 ms, it is determined that the door body is opened, effectively filtering the false trigger caused by transient door body shaking due to vehicle bumps.

[0020] In addition, two structurally identical capacitive sensing electrodes can be symmetrically fixed (such as pasted) inside the door body of the refrigerator, such as being placed on the side wall of the storage compartment (close to the door body edge, avoiding the bottom of the door body where condensate water is easily collected), and the distance between the two electrodes is kept at a certain distance to form a differential detection structure. When the door body condenses due to temperature fluctuations, condensate water is evenly attached to the surface of the electrodes, and the capacitance value between the two electrodes slowly and slightly increases (such as a change of <5 pF). When an object is placed in the storage compartment and close to the electrode, the object (such as a plastic bottle or a metal can) will change the electric field distribution around the electrode, causing the capacitance value to rapidly and significantly increase (such as a change of ≥15 pF). The system compares the capacitance change rate and amplitude of the two electrodes through differential capacitance technology to accurately distinguish between condensation and object placement, avoiding false judgments that condensation is caused by objects blocking the door body from closing or that objects are temporarily placed due to condensation causing poor door body sealing.

[0021] It should be noted that the running state of the vehicle-mounted refrigerator can be configured in advance. If it is set to the shutdown state, the refrigerator is in the shutdown state regardless of whether the vehicle is in the running state or the off state. If it is set to the running state, and the vehicle is off, the vehicle-mounted refrigerator is in the running state. At this time, the following judgments can be performed on the empty box state, the door opening times, the running time, and the battery voltage: whether the refrigerator is in an empty box state e (such as can be detected by an optical sensor, 0 is empty, and 1 is not empty); the door opening times n (such as can be detected by a Hall component, the counting starts after the car is off, and can be reset to zero once every 48 hours); the running time t (the counting starts after the car is off, and t is reset to zero after the car is started); and the small battery voltage V (the remaining capacity of the small battery is evaluated according to V). The small battery refers to the battery on the vehicle for powering the vehicle-mounted refrigerator and other vehicle-mounted electrical equipment.

[0022] If it is detected that the vehicle-mounted refrigerator is in an empty box state, the refrigerator is automatically shut down until the user actively starts the start key to save electricity. If it is detected that the vehicle-mounted refrigerator is not empty, e = 1; but V <11.1V, the refrigerator is automatically shut down to ensure that the small battery has enough power to start the vehicle and other devices. If it is detected that the vehicle-mounted refrigerator is not empty, e = 1; and V > 11.1V, the refrigerator can continue to run: when the running time t > 48 hours and the refrigerator door opening times n = 0, it is automatically shut down; if n >= 1, it is extended to run for 48 hours (cumulative to 96 hours); thereafter, a determination can be made every 48 hours, such as when the running time t > 48+48 and the refrigerator door opening times n = 0, it is automatically shut down; if n >= 1, it is extended to run for 48 hours (cumulative to 144 hours); when the running time t > 48+48+48 and the refrigerator door opening times n = 0, it is automatically shut down; if n >= 1, it is extended to run for 48 hours (cumulative to 192 hours); when the running time t > 48+48+48+48 and the refrigerator door opening times n = 0, it is automatically shut down; if n >= 1, it is extended to run for 24 hours, i.e., the refrigerator is automatically shut down after 9 days of cumulative work; at the same time, the monitoring process of the door opening frequency and the single door opening time of the target vehicle-mounted refrigerator can be performed. It should be noted that in all the above running states, if V <11.1V is detected, the refrigerator will be automatically shut down to ensure that the remaining power is sufficient to start the vehicle.

[0023] In step S120, the user usage state is determined based on the door opening frequency and the single door opening time. Optionally, the door body state data collected by the door body sensor is used to count the total number of door openings (i.e., door opening frequency) in a unit of time (e.g., 1 hour, 2 hours), and record the duration from opening to complete closing of the door body each time (i.e., single door opening duration); then, the user usage state is determined in combination with the preset determination threshold. For example, when the door opening frequency is > 5 times in 1 hour and the cumulative single door opening duration is > 10 minutes, it is determined to be a high-frequency usage state (corresponding to the scenario of the user frequently taking and placing items in a short time, such as taking cold drinks multiple times while camping); when the door opening frequency is ≤ 2 times in 1 hour and the cumulative single door opening duration is ≤ 3 minutes, it is determined to be a low-frequency usage state (corresponding to the scenario of the user occasionally taking items during commuting); if there is no door opening operation (frequency 0, duration cumulative 0) for more than 3 hours, it is determined to be a suspended usage state (corresponding to the scenario of the user not needing to use it, such as resting while parking). The entire process is coupled through the dual-dimension data of frequency and duration, avoiding misjudgment caused by single dependence on frequency (such as the different effects of frequent short-time door opening and a small amount of long-time door opening on the load of the refrigerator), and ensuring that the determination of the user usage state is more in line with actual needs.

[0024] In step S130, current temperature fluctuation data corresponding to the target vehicle refrigerator and battery remaining capacity are obtained; Optionally, the current temperature fluctuation data is collected in real time by a high-precision temperature sensor (such as an NTC thermistor) arranged inside the refrigerator, which not only records the actual temperature in the box, but also calculates the temperature variation amplitude and rate in a unit of time (e.g., 1 minute, 5 minutes), to reflect the temperature stability in the box under the influence of door opening and closing and environmental temperature; the battery remaining capacity can be the remaining capacity of the vehicle main battery or the remaining capacity of the small battery: if it is the remaining capacity of the small battery, it is obtained through the communication interface (or dedicated power management module) of the refrigerator and the small battery power supply circuit, and the SOC data output by the small battery BMS is directly read; if it is the remaining capacity of the vehicle main battery, it is obtained by communicating between the refrigerator and the vehicle OBD interface (or CAN bus), and the main battery SOC data output by the vehicle BMS is read; in both scenarios, the current voltage, discharge current, and other auxiliary data of the corresponding battery are collected synchronously, and the capacity misjudgment caused by the virtual battery in a low-temperature environment is excluded through voltage-capacity curve calibration and current integration algorithm. Then, the collected data can be transmitted to the refrigerator control mainboard through a real-time communication protocol (such as CAN bus, UART), the collection frequency matches the user state determination frequency, and the data timeliness is ensured, providing an accurate basis for the refrigeration strategy adjustment based on the battery remaining capacity.

[0025] In step S140, a dynamic adjustment strategy is determined based on the user usage state, the current temperature fluctuation data, and the battery remaining capacity, and the refrigeration power of the target vehicle refrigerator is dynamically adjusted based on the dynamic adjustment strategy.

[0026] Optionally, the user usage state reflects the intensity of the user's usage demand for the refrigerator, such as high-frequency and long-time door opening, which means that the user takes out objects frequently and has high demand in recent period; the current temperature fluctuation data, which is collected by the temperature sensor in the refrigerator in real time, can reflect the changes of the temperature in the refrigerator due to user operation or external environment, and if the temperature fluctuation is large, it means that the refrigeration system needs to work harder to maintain the set temperature; the battery remaining capacity is obtained by communicating with the vehicle to obtain the remaining capacity of the main battery of the vehicle or the small battery that supplies power to the refrigerator, which is related to the sustainability of power supply. After integrating the above data, a dynamic adjustment strategy can be developed, such as if the user usage state is high-frequency, the temperature fluctuation is large, and the battery remaining capacity is sufficient, the refrigeration power can be increased to quickly pull the temperature in the refrigerator back to the set value and keep it stable; if the user usage state changes to low-frequency, the temperature fluctuation is small, and the battery remaining capacity is insufficient, the refrigeration power can be reduced to meet the basic preservation demand while saving power, ensuring that the vehicle can start normally subsequently, thereby realizing intelligent, efficient and energy-saving dynamic adjustment of the refrigeration power of the vehicle-mounted refrigerator. If the battery remaining capacity is lower than the preset threshold, regardless of whether the user usage state is high-frequency or the temperature fluctuation is large enough, the refrigerator is turned off.

[0027] In the embodiments of the present application, the user usage state can be accurately determined by monitoring the door opening frequency and the single door opening time of the target refrigerator; the current temperature fluctuation data and the current battery remaining capacity corresponding to the target refrigerator are obtained, and a dynamic adjustment strategy is determined based on the user usage state, the temperature fluctuation data and the battery remaining capacity, and then the refrigeration power of the target refrigerator is dynamically adjusted. The refrigeration power can be flexibly adjusted according to the actual usage of the user (reflected by the door opening frequency and the single door opening time) and the temperature change in the refrigerator, avoiding unnecessary increase of energy consumption caused by frequent opening and closing of the door, solving the contradiction between energy consumption and temperature fluctuation in the traditional technology; and the battery remaining capacity of the vehicle can be combined to reasonably allocate energy under the premise of ensuring the preservation effect of the refrigerator, meeting the usage demand in different scenarios, such as appropriately increasing the refrigeration power to maintain the temperature stable when the battery remaining capacity is sufficient and the user uses frequently, and reducing the refrigeration power to save energy when the battery remaining capacity is insufficient and the user uses infrequently, effectively solving the problems that the scenario demand is not met and the vehicle battery state is not linked in the traditional technology, and realizing a good balance between energy consumption control, preservation effect and battery protection of the vehicle-mounted refrigerator.

[0028] In an embodiment of the present application, after determining the user usage state based on the door opening frequency and the single door opening time, the method further comprises: building a frequency-closing time mapping model; determining a basic closing rule corresponding to the door opening frequency based on the frequency-closing time mapping model and the user usage state, wherein the basic closing rule is used to determine the basic closing time of the target vehicle-mounted refrigerator according to the door opening frequency in a unit of time; Based on the user usage habit data, the basic closing rule is dynamically corrected to generate an optimized closing rule adapted to the target user, wherein the optimized closing rule is linked with the dynamic adjustment strategy.

[0029] Optionally, first, a frequency-closing time mapping model is constructed, which is generated based on historical door opening frequency data of the target vehicle-mounted refrigerator and statistical results of reasonable closing time in corresponding scenes, and includes the association between different door opening frequencies and corresponding basic door closing time. For example, when the door opening frequency is > 3 times / hour and the user usage state is a high-frequency state, the automatic closing time is extended to 30 minutes; when the frequency is < 1 time / hour and the user usage state is a low-frequency state, it is shortened to 10 minutes, balancing energy saving and use convenience. Then, based on this model and in combination with the determined user usage state, the basic closing rule corresponding to the current door opening frequency is determined, which can be understood as giving the basic closing time standard of the vehicle-mounted refrigerator door according to the door opening frequency per unit time. Finally, the user usage habit data, such as the user's door opening rule in a specific period (commuting, rest, etc.), the single taking time preference, etc., is used to dynamically correct the basic closing rule to generate an optimized closing rule more adapted to the target user. It should be noted that the optimized closing rule is not independent, but is linked with the strategy of dynamically adjusting the refrigeration power. For example, when the optimized closing rule extends the door closing time, the refrigeration power is maintained at the current power level for a corresponding time; when the optimized closing rule shortens the door closing time, the refrigeration power can enter the low-power level in advance, so as to ensure the user experience while achieving energy-efficient operation of the vehicle-mounted refrigerator.

[0030] It should be noted that the personalized model can be constructed by an LSTM (Long Short Term Memory network) or a decision tree algorithm to realize dynamic optimization of the basic closing rule. Specifically, the personalized model can be trained by continuously collecting and analyzing the historical use data of the user, so that the user's high-frequency use scenario can be identified when the user has a high frequency of opening the door during the commuting period (such as 7-9 am in the morning and 5-7 pm in the evening) and the single opening door duration is stable, and the user's low-frequency use scenario can be identified when the user has a significantly reduced frequency of opening the door and an extended interval time after a break during a long journey (such as 2-4 pm in the afternoon). The LSTM algorithm can accurately mine the rules of use habits in different time periods due to its strong ability to capture time series data, and the decision tree algorithm can generate clear decision rules by classifying features such as time period, frequency, and duration. Based on the learned user habits, the original basic closing rule (such as a basic closing duration of 15 minutes for high-frequency use) is dynamically modified, for example, for users who habitually use the refrigerator during the commuting period, the closing duration of the refrigerator during the period is extended to 20 minutes, and for users who habitually use the refrigerator less frequently during a long journey, the closing duration of the refrigerator during the corresponding period is shortened to 8 minutes, so as to generate an optimized closing rule that fully adapts to the user's behavior pattern, and to balance the convenience of use and energy saving.

[0031] In an embodiment of the present application, the optimized closing rule is linked with the dynamic adjustment strategy, including: If the optimized closing rule is to extend the basic closing duration, the dynamic adjustment strategy synchronously extends the maintenance time of the current refrigeration power; If the optimized closing rule is to shorten the basic closing duration, the dynamic adjustment strategy triggers the refrigeration power to enter a low-power consumption gear in advance by a preset time.

[0032] Optionally, by linking the optimization closing rule with the dynamic adjustment strategy, the door closing time control of the vehicle-mounted refrigerator can be coordinated with the refrigeration power adjustment to avoid energy waste or insufficient experience caused by independent operation. Specifically, when the optimization closing rule determines to extend the basic closing time (for example, the user is in a high-frequency taking period, and extending the closing time is convenient for the user to continuously take goods), the dynamic adjustment strategy will simultaneously extend the maintenance time of the current refrigeration power. At this time, because the closing time is extended, the frequency of opening the door is reduced, the total amount of cold loss in the box is reduced, and maintaining the current refrigeration power can quickly stabilize the temperature in the box to the set value. Maintaining the current power can quickly stabilize the temperature in the box, avoid the temperature rising caused by the power being reduced too early, and ensure the preservation effect during subsequent taking. When the optimization closing rule determines to shorten the basic closing time (for example, the user enters a low-frequency use state, and shortening the closing time reduces invalid standby), the dynamic adjustment strategy will trigger the refrigeration power to enter a low-power consumption gear in advance. At this time, the probability of the user using again in a short period after the door is closed is low, and reducing the power can reduce battery consumption. At the same time, combined with the temperature fluctuation data in the box, it can ensure that the basic temperature preservation demand can be met in the low-power consumption state, and finally realize the double balance of user experience guarantee and vehicle-mounted energy saving.

[0033] In an embodiment of the present application, the user use state is determined based on the door opening frequency and the single door opening time, comprising: Based on the door opening frequency and the single door opening time, the door opening frequency dynamic change data of the target vehicle-mounted refrigerator is obtained, and the dynamic change data includes the descending amplitude of the door opening frequency within a preset time, the time length of the frequency being zero, and the interval time length of the door opening after being closed again; Based on the door opening frequency dynamic change data, the user use demand rule is determined; Based on the user use demand rule, the user use state is determined.

[0034] Optionally, firstly, the opening frequency dynamic change data of the target vehicle-mounted refrigerator is extracted based on the opening frequency and the single opening duration within a preset time period (such as 1 hour, 3 hours, etc.), which not only includes the decline amplitude of the opening frequency within the preset time (such as the amplitude of decreasing from 5 times to 0 times within 1 hour), but also covers the duration of the frequency being zero (such as the duration of no opening for 3 hours) and the interval duration of the user opening the refrigerator again after the refrigerator is closed (such as the interval of opening the refrigerator again 10 minutes after being closed), which comprehensively captures the trend change of the user's use behavior; then, based on these dynamic change data, the user use demand rules are constructed, such as determining the short-term suspension demand when the decline amplitude of the frequency within 1 hour reaches 100%, determining the end use demand when the frequency is zero for more than 3 hours, etc. Finally, the current user's behavior characteristics are matched according to the constructed user use demand rules, and the user use state (such as high-frequency use, low-frequency use, short-term no use demand, end use, etc.) is accurately determined.

[0035] In an embodiment of the present application, the user use state is determined based on the user use demand rules, comprising: If the decline amplitude of the opening frequency within the preset time is greater than a preset amplitude threshold, it is determined that the user has short-term no use demand, and the target vehicle-mounted refrigerator is controlled to be automatically closed after being delayed for a preset duration; If the duration of the frequency being zero is greater than a preset duration, it is determined that the user has ended use, and the target vehicle-mounted refrigerator is controlled to be immediately closed; If the interval duration of opening the target vehicle-mounted refrigerator again after being closed is less than a preset interval duration, it is determined that the user is in a temporary taking scenario, and the target vehicle-mounted refrigerator is controlled to be automatically woken up and restored to the running state before being closed.

[0036] Optionally, when it is monitored that the decline amplitude of the opening frequency within the preset time exceeds the preset amplitude threshold (such as decreasing from 5 times to 0 times within 1 hour, with a decline amplitude of 100%), it is determined that the user is in a short-term no use demand state, and the target vehicle-mounted refrigerator is controlled to be automatically closed after being delayed for a preset duration (such as 15 minutes). If the duration of the opening frequency being zero after the last opening and closing of the target vehicle-mounted refrigerator exceeds the preset duration (such as 3 hours), it indicates that the user has no subsequent use demand, and it is determined that the user has ended use, so the vehicle-mounted refrigerator can be controlled to be closed to maximize the saving of the vehicle-mounted battery power. If the interval duration of the user opening the refrigerator again after the refrigerator is closed is shorter than the preset interval duration (such as 10 minutes), it corresponds to the high-frequency scenario of the user temporarily taking, and it is determined that the user has temporary taking demand, so the vehicle-mounted refrigerator can be automatically woken up and restored to the running state before being closed (such as maintaining the original refrigeration temperature), without the need for the user to manually restart, which balances the use convenience and the stability of the temperature in the refrigerator.

[0037] In an embodiment of the present application, the user use state is determined based on the opening frequency and the single opening duration, comprising: If the door opening frequency in the preset time range is greater than the first preset number of times, the user usage state is a high-frequency state, and the automatic closing time of the refrigerator is extended by a first preset time length; If the door opening frequency in the preset time range is less than the second preset number of times, the user usage state is a low-frequency state, and the automatic closing time of the refrigerator is shortened by a second preset time length.

[0038] Optionally, if the door opening frequency in a preset time range (such as 1 hour) is greater than a first preset number of times (such as more than 3 times), the user usage state is a high-frequency state, and the automatic closing time of the refrigerator is extended by a first preset time length (such as 30 minutes). If the door opening frequency in the preset time range (such as 1 hour) is less than a second preset number of times (such as less than 1 time), the user usage state is a low-frequency state, and the automatic closing time of the refrigerator is shortened by a second preset time length (such as 10 minutes). To balance energy saving and use convenience.

[0039] In an embodiment of the present application, the door opening frequency and single door opening time of the target vehicle-mounted refrigerator are monitored, including: acquiring opening and closing state data of the door body of the target vehicle-mounted refrigerator through a preset door body sensor; performing anti-interference processing on the opening and closing state data, the anti-interference processing including at least one of dynamic filtering and temperature drift compensation; wherein the dynamic filtering uses a Kalman filtering algorithm to perform noise reduction processing on the opening and closing state data, and the temperature drift compensation is used to obtain a real-time environment temperature and dynamically adjust a voltage trigger threshold range of the preset door body sensor according to a preset temperature-voltage threshold mapping relationship; obtaining the door opening frequency and single door opening time based on the opening and closing state data after anti-interference processing.

[0040] Optionally, due to the data collected by the sensor is susceptible to the influence of factors such as vibration, high temperature in the vehicle environment (such as transient signal fluctuation caused by vehicle bumping, sensor voltage drift caused by high temperature), false detection problem is easy to occur. Therefore, after collecting the opening and closing state data of the target vehicle refrigerator door body, anti-interference processing can be performed to ensure the accuracy of the user door body operation data and lay a foundation for subsequent user state judgment. Specifically, first, the opening and closing state data of the refrigerator door body is collected in real time through the preset door body sensor (such as Hall sensor, door magnetic switch, etc.), and the original signal of the door opening / closing is captured; then, in view of the problem that vibration, temperature fluctuation and other factors in the vehicle environment are easy to cause data distortion, anti-interference processing is performed on the collected opening and closing state data, if dynamic filtering is adopted, the noise (such as transient false trigger signal caused by vibration) in the original data can be reduced by Kalman filtering algorithm, and the true opening and closing state change is retained; if temperature drift compensation is adopted, the real-time environment temperature is first obtained, and then the voltage trigger threshold range of the sensor is dynamically adjusted according to the preset temperature-voltage threshold mapping relationship, so as to avoid the sensitivity deviation of the sensor caused by temperature change; finally, based on the accurate opening and closing state data after anti-interference processing (dynamic filtering or temperature drift compensation, or combination of the two), the total number of door openings in unit time is counted to obtain the door opening frequency, and the duration from opening to complete closing of each door opening is recorded to obtain the single door opening duration.

[0041] In the embodiments of the present application, by monitoring the door opening frequency and single door opening duration of the target refrigerator, the user usage state can be accurately determined; at the same time, the current temperature fluctuation data and the current battery remaining capacity corresponding to the target refrigerator are obtained, and the dynamic adjustment strategy is determined based on the user usage state, the temperature fluctuation data and the battery remaining capacity, and then the refrigeration power of the target refrigerator is dynamically adjusted. Both the actual use of the user (reflected by the door opening frequency and the single door opening duration) and the internal temperature change of the refrigerator can be used to flexibly adjust the refrigeration power, avoid unnecessary energy consumption increase caused by frequent opening and closing of the door, and solve the contradiction between energy consumption and temperature fluctuation in the traditional technology; and the battery remaining capacity can be combined to reasonably allocate energy under the premise of ensuring the refrigeration effect of the refrigerator, so as to meet the use demand in different scenes, such as appropriately increasing the refrigeration power to maintain the temperature stability when the battery remaining capacity is sufficient and the user uses frequently, and reducing the refrigeration power to save energy when the battery remaining capacity is insufficient and the user uses infrequently. The problems that the scene demand is not met and the vehicle battery state is not linked in the traditional technology are effectively solved, and a good balance between energy consumption control, refrigeration effect and battery protection of the vehicle refrigerator is achieved.

[0042] It should be understood that the size of the serial number of each step in the above embodiments does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0043] In an embodiment, a vehicle-mounted refrigerator intelligent power saving device is provided, which corresponds to the vehicle-mounted refrigerator intelligent power saving method in the above embodiment. As shown in the figure, the vehicle-mounted refrigerator intelligent power saving device includes an opening state monitoring unit 10, a user use state determining unit 20, a refrigerator running data acquisition unit 30, and a power dynamic adjustment unit 40. The functions of each module are described in detail as follows: Figure 2 The opening state monitoring unit 10 is used to monitor the opening frequency and single opening duration of the target vehicle-mounted refrigerator. The user use state determining unit 20 is used to determine the user use state based on the opening frequency and single opening duration. The refrigerator running data acquisition unit 30 is used to acquire the current temperature fluctuation data and battery remaining capacity corresponding to the target vehicle-mounted refrigerator. The power dynamic adjustment unit 40 is used to determine a dynamic adjustment strategy based on the user use state, current temperature fluctuation data, and battery remaining capacity, and to dynamically adjust the refrigeration power of the target vehicle-mounted refrigerator based on the dynamic adjustment strategy. In an embodiment of the present application, the device further includes a closing rule optimization unit, which is used to:

[0044] build a frequency-closing time mapping model; determine a basic closing rule corresponding to the opening frequency based on the frequency-closing time mapping model and in combination with the user use state, wherein the basic closing rule is used to determine the basic closing duration of the target vehicle-mounted refrigerator according to the opening frequency per unit time; dynamically correct the basic closing rule based on user use habit data to generate an optimized closing rule adapted to the target user, wherein the optimized closing rule is linked to the dynamic adjustment strategy. In an embodiment of the present application, the closing rule optimization unit is further used to:

[0045] if the optimized closing rule is to extend the basic closing duration, the dynamic adjustment strategy is also extended to extend the maintenance time of the current refrigeration power; if the optimized closing rule is to shorten the basic closing duration, the dynamic adjustment strategy triggers the refrigeration power to enter a low-power consumption gear in advance by a preset time. In an embodiment of the present application, the user use state determining unit 20 is further used to:

[0046] acquire opening frequency dynamic change data of the target vehicle-mounted refrigerator based on the opening frequency and single opening duration, wherein the dynamic change data includes the decline amplitude of the opening frequency within a preset time, the duration of zero frequency, and the interval duration of opening again after closing. ​determine a user usage state based on the user usage demand rule. determine a user usage state based on the user usage demand rule.

[0047] In an embodiment of the present application, the user usage state determination unit 20 is further configured to: if the decrease amplitude of the door opening frequency within the preset time is greater than the preset amplitude threshold, determine that the user has no short-term usage demand, and control the target car refrigerator to automatically turn off after a preset time delay; if the duration of the frequency being zero is greater than the preset duration, determine that the user has ended the usage, and control the target car refrigerator to immediately turn off; if the door opening interval time after the target car refrigerator is turned off is less than the preset interval time, determine that it is a temporary taking scenario, and control the target car refrigerator to automatically wake up and restore to the running state before being turned off.

[0048] In an embodiment of the present application, the user usage state determination unit 20 is further configured to: if the door opening frequency within the preset time range is greater than the first preset number of times, the user usage state is a high-frequency state, and the automatic closing time of the refrigerator is extended by the first preset time length; if the door opening frequency within the preset time range is less than the second preset number of times, the user usage state is a low-frequency state, and the automatic closing time of the refrigerator is shortened by the second preset time length.

[0049] In an embodiment of the present application, the device further comprises an anti-interference unit configured to: acquire the opening and closing state data of the door body of the target car refrigerator through a preset door body sensor; perform anti-interference processing on the opening and closing state data, the anti-interference processing including at least one of dynamic filtering and temperature drift compensation; wherein the dynamic filtering uses a Kalman filtering algorithm to perform noise reduction processing on the opening and closing state data, and the temperature drift compensation is used to obtain a real-time environment temperature and dynamically adjust a voltage trigger threshold range of the preset door body sensor according to a preset temperature-voltage threshold mapping relationship; based on the opening and closing state data after the anti-interference processing, obtain the door opening frequency and the single door opening duration.

[0050] In the embodiment of the present application, the user usage state can be accurately determined by monitoring the door opening frequency and the single door opening duration of the target refrigerator; the current temperature fluctuation data and the current battery remaining capacity corresponding to the target refrigerator are obtained at the same time, and the dynamic adjustment strategy is determined based on the user usage state, the temperature fluctuation data and the battery remaining capacity, and then the refrigeration power of the target refrigerator is dynamically adjusted. The refrigeration power can be flexibly adjusted according to the actual use of the user (reflected by the door opening frequency and the single door opening duration) and the temperature change in the refrigerator, avoiding unnecessary energy consumption increase caused by frequent opening and closing of the door, and solving the contradiction between energy consumption and temperature fluctuation in the traditional technology; and the energy can be reasonably allocated under the premise of guaranteeing the refrigeration effect of the refrigerator, meeting the use demand in different scenes, such as appropriately increasing the refrigeration power to maintain the temperature stability when the battery remaining capacity is sufficient and the user uses frequently, and reducing the refrigeration power to save energy when the battery remaining capacity is insufficient and the user uses infrequently, effectively solving the problems that the scene demand is not met and the vehicle battery state is insufficient in the traditional technology, and realizing a good balance among the energy consumption control, the refrigeration effect and the battery protection of the vehicle refrigerator.

[0051] The specific limitations of the vehicle refrigerator intelligent power saving device can be referred to the limitations of the vehicle refrigerator intelligent power saving method in the above, which will not be repeated here. Each module in the above vehicle refrigerator intelligent power saving device can be realized by software, hardware and their combination in whole or in part. The above modules can be embedded in or independent of the processor in the electronic device in hardware form, or can be stored in the memory in the electronic device in software form, so as to be called and executed by the processor to perform the operations corresponding to the above modules.

[0052] In one embodiment, an electronic device, which can be a terminal device, has an internal structure diagram as shown in Figure 3 The electronic device includes a processor, a memory and a network interface connected by a system bus. The processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a readable storage medium. The readable storage medium stores computer readable instructions. The network interface of the electronic device is used to communicate with external terminals through network connection. The computer readable instructions are executed by the processor to implement a vehicle refrigerator intelligent power saving method. The readable storage medium provided in the embodiment includes a non-volatile readable storage medium and a volatile readable storage medium.

[0053] In the embodiment of the present application, an electronic device is provided, which includes a memory, a processor and computer readable instructions stored in the memory and executable on the processor, and the processor executes the computer readable instructions to implement the steps of the above vehicle refrigerator intelligent power saving method.

[0054] In the embodiments of the present application, a readable storage medium is provided, and the readable storage medium stores computer readable instructions. The computer readable instructions are executed by a processor to implement the steps of the intelligent power saving method of the vehicle refrigerator.

[0055] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by computer readable instructions instructing related hardware, and the computer readable instructions can be stored in a non-volatile readable storage medium or a volatile readable storage medium. When the computer readable instructions are executed, the processes of the above-mentioned embodiments can be included. Any reference to memory, storage, database or other medium used in the embodiments provided by the present application can include non-volatile and / or volatile memory. The non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. The volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM) and memory bus dynamic RAM (RDRAM) and the like.

[0056] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is exemplified, and in actual application, the above-mentioned functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above.

[0057] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A method for intelligent power saving of a vehicle-mounted refrigerator, characterized in that, The method comprises: Monitoring the door opening frequency and single door opening duration of a target vehicle-mounted refrigerator; Based on the door opening frequency and single door opening duration, determining the user usage state; Obtaining the current temperature fluctuation data and battery remaining capacity corresponding to the target vehicle-mounted refrigerator; Based on the user usage state, current temperature fluctuation data and battery remaining capacity, determining a dynamic adjustment strategy to dynamically adjust the refrigeration power of the target vehicle-mounted refrigerator based on the dynamic adjustment strategy.

2. The intelligent power saving method for the car refrigerator as claimed in claim 1, wherein, After determining the user usage state based on the door opening frequency and single door opening duration, the method further comprises: Building a frequency-closing time mapping model; Based on the frequency-closing time mapping model, in combination with the user usage state, determining a basic closing rule corresponding to the door opening frequency, wherein the basic closing rule is used to determine the basic closing duration of the target vehicle-mounted refrigerator according to the door opening frequency per unit time; Based on user usage habit data, dynamically correcting the basic closing rule to generate an optimized closing rule adapted to the target user, wherein the optimized closing rule is linked with the dynamic adjustment strategy.

3. The intelligent power saving method for the car refrigerator as claimed in claim 2, wherein, The linkage of the optimized closing rule and the dynamic adjustment strategy comprises: If the optimized closing rule is to extend the basic closing duration, the dynamic adjustment strategy synchronously extends the maintenance time of the current refrigeration power; If the optimized closing rule is to shorten the basic closing duration, the dynamic adjustment strategy triggers the refrigeration power to enter a low-power consumption gear in advance by a preset time.

4. The intelligent power saving method for the car refrigerator as claimed in claim 1, wherein, Based on the door opening frequency and single door opening duration, determining the user usage state comprises: Based on the door opening frequency and single door opening duration, obtaining the door opening frequency dynamic change data of the target vehicle-mounted refrigerator, the dynamic change data including the decrease amplitude of the door opening frequency within a preset time, the duration of zero frequency and the interval duration of opening again after closing; Based on the door opening frequency dynamic change data, determining the user usage demand rule; Based on the user usage demand rule, determining the user usage state.

5. The intelligent power saving method for vehicle refrigerator as claimed in claim 4, wherein, Based on the user usage demand rule, determining the user usage state comprises: If the decrease amplitude of the door opening frequency within a preset time is greater than a preset amplitude threshold, it is determined that the user has no short-term usage demand, and the target vehicle-mounted refrigerator is controlled to be automatically closed after a preset time delay; If the duration of zero frequency is greater than a preset duration, it is determined that the user has ended the use, and the target vehicle-mounted refrigerator is controlled to be immediately closed; If the interval duration of opening again after the target vehicle-mounted refrigerator is closed is less than a preset interval duration, it is determined that the user is in a temporary taking scenario, and the target vehicle-mounted refrigerator is controlled to be automatically awakened and restored to the running state before closing.

6. The intelligent power saving method for car refrigerator as claimed in claim 1, wherein, Based on the door opening frequency and single door opening duration, determining the user usage state comprises: If the door opening frequency within a preset time range is greater than a first preset number of times, the user usage state is a high-frequency state, and the automatic closing time of the refrigerator is extended by a first preset duration; If the door opening frequency within a preset time range is less than a second preset number of times, the user usage state is a low-frequency state, and the automatic closing time of the refrigerator is shortened by a second preset duration.

7. The intelligent power saving method for car refrigerator as claimed in any one of claims 1-6, characterized in that, The monitoring of the door opening frequency and single door opening duration of the target vehicle-mounted refrigerator comprises: The opening and closing state data of the target vehicle refrigerator door is collected through a preset door body sensor; The opening and closing state data is subjected to anti-interference processing, which includes at least one of dynamic filtering and temperature drift compensation; wherein the dynamic filtering adopts Kalman filtering algorithm to perform noise reduction processing on the opening and closing state data, and the temperature drift compensation is used to obtain real-time ambient temperature and dynamically adjust the voltage trigger threshold range of the preset door body sensor according to a preset temperature-voltage threshold mapping relationship; Based on the opening and closing state data subjected to anti-interference processing, the door opening frequency and single door opening duration are obtained.

8. A vehicle-mounted refrigerator intelligent power saving device, characterized in that, The device comprises: A door opening state monitoring unit for monitoring the door opening frequency and single door opening duration of the target vehicle refrigerator; A user usage state determination unit for determining the user usage state based on the door opening frequency and single door opening duration; A refrigerator operation data acquisition unit for acquiring the current temperature fluctuation data and battery remaining capacity corresponding to the target vehicle refrigerator; A power dynamic adjustment unit for determining a dynamic adjustment strategy based on the user usage state, current temperature fluctuation data and battery remaining capacity, and dynamically adjusting the refrigeration power of the target vehicle refrigerator based on the dynamic adjustment strategy.

9. An electronic device comprising a memory, a processor, and computer readable instructions stored in the memory and executable on the processor, wherein, The processor executes the computer readable instructions to implement the steps of the vehicle refrigerator intelligent power saving method of any one of claims 1-7.

10. A readable storage medium, the readable storage medium storing computer readable instructions, characterized in that, The computer readable instructions are executed by the processor to implement the steps of the vehicle refrigerator intelligent power saving method of any one of claims 1-7.

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